131022293 has 2 divisors, whose sum is σ = 131022294. Its totient is φ = 131022292.

The previous prime is 131022289. The next prime is 131022313. The reversal of 131022293 is 392220131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117896164 + 13126129 = 10858^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 131022293 - 2² = 131022289 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131024293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65511146 + 65511147.

It is an arithmetic number, because the mean of its divisors is an integer number (65511147).

Almost surely, 2^131022293 is an apocalyptic number.

It is an amenable number.

131022293 is a deficient number, since it is larger than the sum of its proper divisors (1).

131022293 is an equidigital number, since it uses as much as digits as its factorization.

131022293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 131022293 is about 11446.4969750575. The cubic root of 131022293 is about 507.9041155030.

The spelling of 131022293 in words is "one hundred thirty-one million, twenty-two thousand, two hundred ninety-three".